A patient has been admitted to the postsurgical nursing unit after surgery. The health care provider has ordered the patient to have an IV of 0.9% sodium chloride. The nurse who is caring for the patient recognizes this as what type of solution?
a. Hypotonic
b. Isotonic
c. Hypertonic
d. Hypnotic
B
Fluids that have the same osmolality as normal blood are called isotonic. Intravenous (IV) solutions are hypertonic, isotonic, or hypotonic. Isotonic solutions such as 0.9% sodium chloride (same osmolality as normal blood) expand the body's extracellular fluid volume without causing water to shift in or out of cells. There is no hypnotic solution.
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